Anthropic: Claude Opus 4.1

Reasoning Tool Calling Attachments

Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains...

Providers 2

Released Aug 5, 2025

Input Modalities image, pdf, text

Output Modalities text

Tarsk Use coding

Available Providers (2)

Provider	Model ID	Input Cost	Output Cost	Context	Max Output	Docs
Kilo Gateway	`anthropic/claude-opus-4.1`	$15.00/MTok	$75.00/MTok	200K	32K
Helicone	`claude-opus-4-1`	$15.00/MTok	$75.00/MTok	200K	32K

Capabilities

Reasoning

Tool Calling

Attachments

Open Weights

Structured Output